ICP DAS hereby formally unveils the End of Life (EOL) notification that the G-4500-SIM340 series will be phased out of production. The suggested replacement device are G-4500-2G series.

EOL Reason: the GSM/GPRS module is stopped production
Replacement Device: G-4500-2G series (Available now)

Description:
The G-4500-2G provides the all functions of the G-4500-SIM340. The differences between the two products is that of G-4500-2G is less power consumption than G-4500-SIM340, and the GPRS network communication speed is promoted from 1600 ms/1000 bytes to 1421 ms/1000 bytes. However, to replace the G-4500-SIM340 series by the G-4500-2G series, users are needlessly to modify application program.

You can download the latest GSM lib and RTU firmware from:
GSM lib: http://m2m.icpdas.com/GSM_Library.html
RTU firmware: http://m2m.icpdas.com/g-4500_rtu.html